Merge branch 'master' into for-next

[firefly-linux-kernel-4.4.55.git] / include / linux / cgroup.h

diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index ed3e92e41c6e5683ad3dbb823e48259f5150ac33..ed4ba111bc8d32a34ff7c6558589f1d3dc7d073f 100644 (file)
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -75,7 +75,7 @@ struct cgroup_subsys_state {
 
        unsigned long flags;
        /* ID for this css, if possible */
-       struct css_id *id;
+       struct css_id __rcu *id;
 };
 
 /* bits in struct cgroup_subsys_state flags field */
@@ -154,6 +154,10 @@ enum {
         * A thread in rmdir() is wating for this cgroup.
         */
        CGRP_WAIT_ON_RMDIR,
+       /*
+        * Clone cgroup values when creating a new child cgroup
+        */
+       CGRP_CLONE_CHILDREN,
 };
 
 /* which pidlist file are we talking about? */
@@ -205,7 +209,7 @@ struct cgroup {
        struct list_head children;      /* my children */
 
        struct cgroup *parent;          /* my parent */
-       struct dentry *dentry;          /* cgroup fs entry, RCU protected */
+       struct dentry __rcu *dentry;    /* cgroup fs entry, RCU protected */
 
        /* Private pointers for each registered subsystem */
        struct cgroup_subsys_state *subsys[CGROUP_SUBSYS_COUNT];
@@ -578,7 +582,12 @@ struct task_struct *cgroup_iter_next(struct cgroup *cgrp,
 void cgroup_iter_end(struct cgroup *cgrp, struct cgroup_iter *it);
 int cgroup_scan_tasks(struct cgroup_scanner *scan);
 int cgroup_attach_task(struct cgroup *, struct task_struct *);
-int cgroup_attach_task_current_cg(struct task_struct *);
+int cgroup_attach_task_all(struct task_struct *from, struct task_struct *);
+
+static inline int cgroup_attach_task_current_cg(struct task_struct *tsk)
+{
+       return cgroup_attach_task_all(current, tsk);
+}
 
 /*
  * CSS ID is ID for cgroup_subsys_state structs under subsys. This only works
@@ -636,6 +645,11 @@ static inline int cgroupstats_build(struct cgroupstats *stats,
 }
 
 /* No cgroups - nothing to do */
+static inline int cgroup_attach_task_all(struct task_struct *from,
+                                        struct task_struct *t)
+{
+       return 0;
+}
 static inline int cgroup_attach_task_current_cg(struct task_struct *t)
 {
        return 0;